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A269394 Permutation of natural numbers: a(n) = A269172(3*n) / 3. 4

%I

%S 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,

%T 27,28,29,30,31,32,33,34,35,36,49,38,39,40,41,42,43,44,37,46,47,48,45,

%U 50,51,52,53,54,55,56,57,58,59,60,97,62,63,64,65,66,67,68,69,70,71,72,61,98,99,76,77,78,79,80,73,82,83,84,81

%N Permutation of natural numbers: a(n) = A269172(3*n) / 3.

%C The first non-fixed term is a(37)=49.

%H <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a>

%F a(n) = A269172(3*n) / 3.

%o (Scheme) (define (A269394 n) (/ (A269172 (* 3 n)) 3))

%Y Inverse: A269393.

%Y Cf. A269172, A269396.

%K nonn

%O 1,2

%A _Antti Karttunen_, Mar 03 2016

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Last modified June 15 22:06 EDT 2021. Contains 345053 sequences. (Running on oeis4.)